LG Inverter Heat Pump 58 Gal vs LG Inverter Heat Pump 80 Gal

Last updated: October 22, 2026

The LG Inverter Heat Pump 58 Gal rates 3.7 among 65 gallon heat pump water heaters; the LG Inverter Heat Pump 80 Gal rates 3.7 among 80 gallon ones.

LG Inverter Heat Pump 58 Gal vs LG Inverter Heat Pump 80 Gal

Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Scores side by side

These two sit in different size classes (65 gallon and 80 gallon), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.

Factor weightLG Inverter Heat Pump 58 GalLG Inverter Heat Pump 80 Gal
Overall rating3.7/53.7/5
Efficiency 35%66 3.93 UEF64 3.90 UEF
Hot water 20%64 76 gallons in the first hour76 94 gallons in the first hour
Warranty 20%30 10-year tank, 1-year parts30 10-year tank, 1-year parts
Cold rooms 15%88 heat pump runs down to 23 °F room air88 heat pump runs down to 23 °F room air
Noise 10%88 42 dB(A)50 noise not published (neutral score used)

Specifications

LG Inverter Heat Pump 58 GalLG Inverter Heat Pump 80 Gal
Ratings (ENERGY STAR)
Size (nominal)58 gal80 gal
Tank volume (measured)53 gal72 gal
Uniform Energy Factor3.933.90
First-hour rating76 gal94 gal
Draw patternHighHigh
Yearly energy use1,262 kWh1,272 kWh
Heat pump cut-off (low)23 °F23 °F
Sound level42 dB(A)-
ENERGY STAR ID26706102682263
Installation
Power240 V240 V
Circuit30 A, 208/240 V30 A, 208/240 V
Backup element5,000 W5,000 W
Operating air range23 to 120 °F23 to 120 °F
Minimum room size700 cu ft700 cu ft
Size47.6 in tall, 19.7 in across62.7 in tall, 19.7 in across
Weight220 lb224 lb
RefrigerantR-134aR-134a
Features
Wi-FiBuilt inBuilt in
AppLG ThinQLG ThinQ
ModesAuto, Turbo, Heat Pump, VacationAuto, Turbo, Heat Pump, Vacation
Warranty and models
Warranty10 yr tank, 1 yr parts10 yr tank, 1 yr parts
Released2023-042023-04